Fantasy Baseball 2013: 5 Pitchers You Can Target as Injury Fill-Ins

Have a couple of your pitchers hit the DL? Don't worry. Every year, there a few starting pitchers who turn into aces after starting the year on the waiver wire. Here are five pitchers who are pitching very well but are going unnoticed in most leagues.

Carlos Villanueva, Chicago Cubs

35 percent owned in Yahoo!; 31 percent in ESPN

Villanueva has a 1.53 ERA through 29.1 innings so far, yet he's available in nearly 70 percent of leagues. Obviously, you cannot expect him to maintain that sparking ERA, but his 3.29 xFIP is proof that he's worthy of being owned in all types of leagues. He only has one win to show for his efforts, but the Cubs bullpen and offense haven't treated him very well. It's also an encouraging sign that he's pitched very well against teams like the Braves, Giants, Rangers and Reds.

Tony Cingrani, Cincinnati Reds

51 percent owned in Yahoo!; 70 percent in ESPN

Cingrani has been lights out since being called up. In two starts against the Marlins and Cubs, the young southpaw has struck out 17 batters while walking three and yielding just three earned runs. If you need help in the strikeout department, Cingrani is definitely your guy. After posting a 16.33 K/9 rate at Triple-A before getting called up, he hasn't disappointed. His 12.75 K/9 rate will help any fantasy squad. It's unsure if he'll stay with the club, but he's a must-add while he's getting starts.

Bartolo Colon, Oakland A's

14 percent owned in Yahoo!; 4 percent in ESPN

Last season, Colon was putting up good numbers before he was suspended. He has picked up right where he left off since being reinstated. The veteran is 3-0 with a 2.42 ERA and 0.92 WHIP in 26 innings this year. He's not going to generate a ton of strikeouts, but he'll certainly help out with the ratios. Colon is far from being considered an ace, but he has shown to be a valuable pitcher in Oakland. He'll pitch in some pitcher-friendly parks in the AL West, and he'll get the Astros now.

Patrick Corbin, Arizona Diamondbacks

36 percent owned in Yahoo!; 42 percent in ESPN

It's remarkable that Corbin is 2-0 with a 1.71 ERA, 0.99 WHIP and 6.84 K/9 rate, and he's available in more than half of the leagues out there. He saw MLB time last year, but while his 4.54 ERA might seem unassuming, you have to realize his xFIP was at 3.73. Currently, his xFIP sits at 3.71. His peripherals are just about the same, so you have to think he'll settle somewhere in the middle. So, while you shouldn't expect him to sustain his stellar start, you shouldn't think of this as a fluke either.

Jose Quintana, Chicago White Sox

29 percent owned in Yahoo!; 40 percent in ESPN

Quintana broke on to the scene last season, picking up six wins and posting a 3.76 ERA in 136.1 innings. He's been on a mission to prove that last year's success wasn't by accident. This season, the young lefty is 2-0 with a 2.78 ERA, 1.06 WHIP and a vastly improved 7.94 K/9 rate. His 2.74 FIP is proof that he isn't getting lucky either. His average fastball is just about one mile per hour faster, and that could be the reason for a better strikeout rate. Take a gamble on Quintana while he is hot.